<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
   //数组转换为字符串
   //1.toString() 将我们的数组转换为字符串
   var arr = [1, 2, 3];
   console.log(arr.toString());//
   //join(分隔符)
   var arr1 = ['green', 'blue', 'pink'];
   console.log(arr1.join())// green，blue，pink
   console.log(arr1.join('-')) //green-blue-pink
   console.log(arr1.join('&')) //green&blue&pink
    </script>
</body>
</html>